The K-1 visa, also called the fiancé(e) visa, lets the foreign fiancé(e) of a U.S. citizen enter the United States to marry that citizen within 90 days of arrival, and then apply for a green card. It is technically a nonimmigrant (temporary) visa, but it functions as a direct step toward permanent residence. Only a U.S. citizen can sponsor a K-1 — lawful permanent residents cannot, and generally must marry first and use a spouse visa instead.
Status as of July 2026. There is no premium processing for the fiancé petition, and timelines have been long: the Form I-129F stage alone has commonly run several months to about a year, the full process from filing to the fiancé(e)'s entry has often taken 10 to 18 months, and the green card step after marriage adds many months more. USCIS policy emphasizes discretionary review of adjustment-of-status applications rather than treating approval as automatic, which raises the importance of a well-documented case. The law also created a Visa Integrity Fee of at least $250, collected upon visa issuance at the consulate as that requirement is implemented across posts. Other fees are set on the USCIS and consular fee schedules.
Who qualifies for a K-1 visa
A K-1 petition is approved only when a specific set of conditions is met. The petitioner must be a U.S. citizen. Both people must be legally free to marry, meaning any earlier marriages have ended through divorce, annulment, or death. The couple must genuinely intend to marry within 90 days of the fiancé(e)'s arrival, and the relationship must be real rather than entered into for immigration purposes. One requirement surprises many couples: they must have met in person at least once within the two years before the petition is filed — video calls and messaging do not count — though narrow exceptions exist for established cultural or religious custom, or where meeting would cause extreme hardship. The fiancé(e)'s unmarried children under 21 may travel on K-2 visas tied to the same case. The fiancé(e) must also be admissible to the United States, so the usual grounds of inadmissibility — such as unlawful presence or certain criminal history — can affect a case.
How the K-1 process works
The process runs through several agencies in sequence. First, the U.S. citizen files Form I-129F, the petition for a fiancé(e), with USCIS. Once it is approved, the case passes through the National Visa Center to a U.S. consulate in the fiancé(e)'s country. There, the fiancé(e) completes Form DS-160, has a medical exam, gathers police certificates and civil documents, and attends a consular interview, where the officer reviews the relationship and financial support (shown on Form I-134, Declaration of Financial Support). If the interview goes well, the consulate issues the K-1 visa, which is valid for a single entry over six months. The fiancé(e) then travels to a U.S. port of entry, and the 90-day clock begins on the day they are admitted.
After entering: the 90-day rule and the green card
The marriage must take place within 90 days of entry. This deadline is set by statute and cannot be extended under any circumstances; if the couple does not marry within the window, K-1 status ends and the fiancé(e) is expected to leave. After the wedding, the new spouse applies for a green card through adjustment of status on Form I-485, and can also request a work permit and a travel document while that application is pending. Because K-1 status itself lasts only 90 days, it is often more practical to obtain work authorization through the adjustment stage. If the marriage is less than two years old when the green card is approved, it is granted on a conditional, two-year basis, and the conditions are removed later through a separate filing. The result of the full path is lawful permanent residence — the green card — which can eventually lead to U.S. citizenship.
K-1 visa vs. a spouse visa
Couples frequently weigh the K-1 against marrying abroad first and using a spousal immigrant visa (the CR-1 or IR-1). The trade-offs are real. Depending on current processing times, a K-1 may bring the fiancé(e) to the United States sooner, but it requires a separate, paid adjustment-of-status step after the marriage before a green card is issued. A spouse visa keeps the couple apart longer while it is processed abroad, but the foreign spouse typically enters the U.S. already as a permanent resident, which can be simpler and, once all costs are counted, sometimes cheaper. Neither option is universally better; the right choice depends on where the couple is, how quickly they want to be together, and their overall budget and plans.
How long does a K-1 visa take?
There is no guaranteed timeline and no premium processing. In recent periods the Form I-129F stage has commonly run several months to around a year, and the full process from filing to the fiancé(e)'s entry has typically taken 10 to 18 months, depending on the USCIS service center and the consulate. Adjustment of status after the marriage adds many more months before the green card is issued. Filing a complete, consistent petition is the main way to avoid a Request for Evidence and further delay.
What are the requirements for a K-1 fiancé visa?
The petitioner must be a U.S. citizen; both people must be legally free to marry; the couple must intend to marry within 90 days of the fiancé(e)'s entry; and the relationship must be genuine. The couple must also have met in person at least once within the two years before filing, unless a narrow exception applies. Unmarried children under 21 of the fiancé(e) can be included through K-2 visas.
What happens if the couple does not marry within 90 days?
The 90-day deadline is strict and cannot be extended. If the marriage does not happen within that period, the K-1 status expires, and the fiancé(e) is expected to leave the United States. A K-1 entrant can only adjust status based on marriage to the original petitioner, so marrying someone else, or not marrying, generally forecloses the green card path that the K-1 was meant to open.
Can a K-1 holder work in the U.S.?
A K-1 entrant may apply for a work permit, but because K-1 status lasts only 90 days, that authorization is short-lived. In practice, most people obtain longer-term employment authorization through Form I-765, filed with the adjustment-of-status application after the marriage, when the work permit covers the wait for the green card.
What is the difference between a K-1 visa and a spouse visa?
A K-1 brings a fiancé(e) to the U.S. to marry within 90 days, after which the new spouse applies for a green card from inside the country. A spouse visa (CR-1 or IR-1) is used when the couple is already married; the foreign spouse is processed abroad and usually enters the U.S. as a permanent resident. Depending on processing times, the K-1 may reunite a couple sooner, while the spouse visa can be more economical and deliver the green card at entry.
Can a green card holder petition for a fiancé(e)?
No. Only a U.S. citizen can file Form I-129F for a fiancé(e). A lawful permanent resident who wants to bring a partner generally must marry first and then petition for the spouse through a family-based immigrant visa, rather than using the K-1 category.
Sources we track: USCIS, DHS, EOIR, the Federal Register, and federal courts.